Vol. 69, No. 3, 2023

Acoustical Physics

Classical Problems of Linear Acoustics and Wave Theory

Dispersion and Energy Characteristics of Bending Waves in a Plate Lying on a Two-Parameter Elastic Foundation

V. I. Erofeev and E. E. Lisenkova p. 285 abstract

Internal Antisymmetric Lamb Waves

V. V. Mokryakov p. 292 abstract

Transmission Loss Analysis in an Infinite Tube with Multiple Discontinuities

B. Tiryakioglu p. 303 abstract

Nonlinear Acoustics

Peculiarities in the Transformation of the Profile of Acoustic Nonlinear Waves Reflected from a Stepped Structure

V. K. Bakhtin, S. N. Gurbatov, M. S. Deryabin, and D. A. Kasyanov p. 309 abstract

Interaction of Finite Perturbations with the Front and Singularity of the Profile of a Nonlinear Wave in a Dissipative Medium

V. A. Gusev and O. V. Rudenko p. 318 abstract

Physical Acoustics

Scattering of a Plane Sound Wave by a Spherical Interface of Two Media with Sound Absorption in the Acoustic Boundary Layer

N. S. Grigorieva, F. F. Legusha, and K. S. Safronov p. 325 abstract

Acoustoelectronic Method for Measuring the Velocity of Ultrasonic Waves in Liquids

I. S. Koltsova and A. S. Khomutova p. 330 abstract

Effect of Microstructure on Temperature Dependence of Ultrasonic Velocity in Aluminum

K. V. Kurashkin, A. V. Gonchar, V. A. Klyushnikov, and V. V. Mishakin p. 335 abstract

Ultrasound Control of Viscoelastic Properties of Petroleum Dispersion Systems

M. S. Mullakaev, R. M. Mullakaev, and I. B. Esipov p. 341 abstract

Acoustics of Periodic and Multiple Drop Impacts on a Water Surface

Yu. D. Chashechkin and V. E. Prokhorov p. 348 abstract

Acoustics of Living Systems. Biological Acoustics

Changes in the Spectral Characteristics of Vowels in Russian Speech on a Noise Background

A. M. Lunichkin, I. G. Andreeva, L. G. Zaitseva, A. P. Gvozdeva, and E. A. Ogorodnikova p. 357 abstract

Acoustic Ecology. Noise and Vibration

Increasing the Frequency Resolution when Measuring Vibrations of Rotating Bodies with Fixed Beam Laser Vibrometry

V. V. Artelnyi, A. A. Rodionov, and A. V. Stulenkov p. 367 abstract

Adaptive Active Wideband Acoustic Noise Cancellation System with Dynamic Calibration

A. V. Lvov, V. A. Karaseva, O. A. Potapov, and A. M. Sokov p. 372 abstract

Sound Generation by Metro Trains during Braking and Its Suppression Method

S. G. Suchkov, V. Ya. Yavchunovsky, A. I. Timofeev, V. A. Nikolaevtsev, D. S. Suchkov, and V. V. Tretinnikov p. 381 abstract

Room Acoustics. Musical Acoustics

Free Field Insertion Loss and Echo Reduction of Finite Size Periodic Scatterers in Room Environment

K. Mohapatra, S. V. Pereira, and D. P. Jena p. 388 abstract

Physical Foundations of Technical Acoustics

A Pulse Correlated Gas Flowmeter with Clamp-On Sensors

A. D. Mansfeld, G. P. Volkov, R. V. Belyaev, A. G. Sanin, and D. V. Moroskin p. 401 abstract

Letters to the Editor

On the Question of Equal Loudness of Sounds of Different Frequencies

V. A. Zverev, I. N. Didenkulov, and V. N. Golubev p. 412 abstract

Contents